// JavaScript Document
function sleftclick(){
	var sl = document.getElementById('sl');
	var sc = document.getElementById('sc');
	var sr = document.getElementById('sr');
	
	sl.id = "sc"; sc.id = "sr"; sr.id = "sl";
}

function srightclick(){
	var sl = document.getElementById('sl');
	var sc = document.getElementById('sc');
	var sr = document.getElementById('sr');
	
	sl.id = "sr"; sc.id = "sl"; sr.id = "sc";
}